Hubbell Electric Heater Company CR manual Immersion Temperature High Limit CUT-OFF

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IMMERSION TEMPERATURE HIGH LIMIT CUT-OFF

1.Disconnect power from unit.

2.Remove access cover.

3.Remove high limit cover screw and cover.

Cover

Cover Screw

Reset Switch

4. Disconnect the two (2) 14 gauge wires.

Wires

Capillary Tube

5. Remove capillary tube and bulb from thermowell

6. Remove two (2) mounting screws.

Mounting Screws

7.Remove control and install new high limit switch by performing above steps in reverse order. (Note: Be sure to place capillary tube into slot in base prior to installing cover.)

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Contents Electric Heater Company Hubbell Electric Heater Company BOXSTRATFORD, CT Table of Contents Section Title Page Section I General Description and Construction Pressure VesselVessel Connections Heating Element Flow SwitchOuter SHELL, INSULATION, and Supports Electrical EnclosureControl Thermostat Temperature High Limit Switch Magnetic ContactorFused LOW Voltage Transformer Options Individually Fused ElementsLOW Water CUT-OFF Stainless Steel JacketBuilt-In Circuit Breaker On / Off Control SwitchAudible Alarm Building Management System BMSDial Temperature and Pressure Gauge Special Customized FeaturesSilicon Control Rectifier Heater Placement Piping InstallationElectrical Installation Filling the HeaterFinal Checks Freezing Section III Scheduled Maintenance and OperationMaintenance and Operation Quarterly InspectionSection IV Troubleshooting Symptom Probable Cause Corrective Action / RemedyPage Section V Servicing & Replacement of Parts Immersion Temperature High Limit CUT-OFF Immersion Thermostat Heating Element Relief Valve Section VI Miscellaneous Charts and Formulas Nema Enclosures Electrical Data Formulas Torque Values

CR, CR specifications

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